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No leakage pump main technology: 1, the rotor axial force adjustment and balance 2, cooling and lubrication measures 3, shielding sleeve, isolation sleeve and the gap 4, the bearing and the thrust plate 5, 6 rotor, state monitoring According to the transmission medium, Different conditions, shielded pump cycle there are three main ways: 1, is the cycle 2, reverse cycle 3, the outer circle of this paper, the key times: the pump
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